expired
ECO-WORTHY 10W Solar Car Battery Charger Maintainer w/ OBD-II Cable
$24
$40
40% off
Amazon
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AmazonDeal Details
Update: This popular deal is still available.
CO-WORTHY US via Amazon has ECO-WORTHY 10W Solar Car Battery Charger Maintainer w/ OBD-II Cable for $29.99 - $6 when you apply promo code OZ623KSG at checkout = $23.99. Shipping is free with Prime or on $35+ orders.
Includes:
CO-WORTHY US via Amazon has ECO-WORTHY 10W Solar Car Battery Charger Maintainer w/ OBD-II Cable for $29.99 - $6 when you apply promo code OZ623KSG at checkout = $23.99. Shipping is free with Prime or on $35+ orders.
- Note: You must be logged in to apply promo codes; promo codes are typically for one-time use and don't always apply seamlessly. If you run into this issue, refresh the page, re-enter the code, or revisit the cart page.
Includes:
- 10W 12V solar battery charger panel
- OBD-II charging cable (for direct vehicle connection)
- Alligator clip cable (for direct battery connection)
- Adjustable mounting bracket
- 4 x PVC screw-on suction cups for window mounting
- Integrated indicator light (built into panel)
Editor's Notes
Written by qwikwit | Staff- About this deal:
- Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
- About this store:
- Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
- If you're not a student, there's also a free 1-Month Amazon Prime trial available.
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Update: This popular deal is still available.
CO-WORTHY US via Amazon has ECO-WORTHY 10W Solar Car Battery Charger Maintainer w/ OBD-II Cable for $29.99 - $6 when you apply promo code OZ623KSG at checkout = $23.99. Shipping is free with Prime or on $35+ orders.
Includes:
CO-WORTHY US via Amazon has ECO-WORTHY 10W Solar Car Battery Charger Maintainer w/ OBD-II Cable for $29.99 - $6 when you apply promo code OZ623KSG at checkout = $23.99. Shipping is free with Prime or on $35+ orders.
- Note: You must be logged in to apply promo codes; promo codes are typically for one-time use and don't always apply seamlessly. If you run into this issue, refresh the page, re-enter the code, or revisit the cart page.
Includes:
- 10W 12V solar battery charger panel
- OBD-II charging cable (for direct vehicle connection)
- Alligator clip cable (for direct battery connection)
- Adjustable mounting bracket
- 4 x PVC screw-on suction cups for window mounting
- Integrated indicator light (built into panel)
Editor's Notes
Written by qwikwit | Staff- About this deal:
- Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
- About this store:
- Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
- If you're not a student, there's also a free 1-Month Amazon Prime trial available.
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Community Reviews
This 10W solar battery maintainer is aimed at keeping a parked vehicle topped off, especially for cars, trucks, mowers, and other equipment that sit for weeks at a time. The low price stands out, and the panel has been reported to hold batteries around 12.75 volts, clear low battery warnings, and restart vehicles after long idle periods. The OBD II setup is convenient for some vehicles, but the connector can be finicky, and several reports question whether the panel is enough in winter, behind tinted glass, or for dead batteries. It looks best suited to light maintenance in decent sun.
Common Questions (5)
For maintenance use, 10W can be enough because real-world parasitic draw on many vehicles is low and the panel's rated wattage is its maximum output. It may still be insufficient for some vehicles, especially in winter, under snow, or when the car's draw is higher than the panel can replace.
Yes, it can keep rarely driven vehicles topped off and prevent low-battery warnings when the car has parasitic draw or sits for weeks. Users report success on trucks, vans, mowers, and older cars, with batteries staying around 12.75V and cars starting right up after long sits.
It can work through the OBD-II port on vehicles that support it, and some setups use the battery-terminal clips or a wired-in battery connection instead. Several comments note the OBD-II route is finicky on some cars, so direct battery connections are the safer fallback.
It is a battery maintainer, not a dead-battery charger. It is meant to keep an already charged battery topped off and prevent drain, though some users report it can recover a battery if left on long enough.
It can work inside the windshield, but output drops compared with direct sun. One comment estimates a 30% to 50% efficiency loss behind glass, and tinted glass or poor angles can push losses to 70% or more.
AI-generated summary based on comments from the community. Updated ago
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70 Comments
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Apparently bright sunshine is not a requirement for the panel to generate electric current in some situations.
I have confirmed that the charging light being on is not a flase positive from the OBDII port by removing the panel and placing it face down on the car's seat, thus blocking out all sunlight. The charging light goes back on when the panel is pointed towards the windshield again. The charging light is of course never on when it is dark at night.
YMMV.
Example for reference only:
https://www.amazon.com/YARCHONN-M...90&sr=1-10
Get good results?
Is it possible to use the panel to slow charge a single smartphone while driving around?
Would attach the panel to the car's sunroof (or moonroof?) so not to obscure the windows' normal visibility while driving.
Hopefully enough sunlight can get through the tint on the roof glass.
Either all of the car's USB power ports/cigarette lighter ports are in use and/or conserving the car's battery power level would be the reasons the panel would be used in this manner.
If dual use is possible, then the panel might be very useful on long business trips.
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